【医】 静脉导管

blockage and oppression in the chest and stomch duct

pipe elbow, duct bend

Hering duct

stenosis of nasolacrimal duct

air drain【建】;air duct【建】矿业;vent gutter【建】矿业

collecting duct

mammary duct ectasia

canalis nasolacrimalis【解剖】;ductus nasolacrimalis【解剖】;nasal duct【解剖】